Administrative Assistant – Front Desk & HR Support

REI Systems•Sterling, VA

19h•Hybrid

About The Position

REI Systems’ mission is to deliver reliable and innovative technology solutions that empower federal, state, local, and nonprofit organizations to achieve their missions. For over 35 years, we’ve helped our customers solve complex challenges, make data-driven decisions, streamline processes, and improve citizen services. As a 100% employee-owned company, we are all directly invested in delivering excellence. With a fierce commitment to mission impact, we ensure measurable outcomes that align with our customers’ strategic goals. REI is also leading the industry in the integration of Artificial Intelligence across federal capture, delivery, and customer engagement. We leverage AI-driven research, opportunity intelligence, competitive assessments, and customer insight tools to elevate our win strategies and accelerate decision-making. This role will work in an environment where AI is embedded into the capture lifecycle—and will be expected to use AI tools to enhance capture quality, speed, and precision. We offer the same commitment to our employees by providing professional development, meaningful projects, and flexibility to spend time with family and friends. We believe employees are at their best when fulfilled in both their professional careers and their personal lives. Learn more at www.REIsystems.com. Employees voted REI Systems a Washington Post Top Workplace in 2015, 2016, 2018, 2020, 2021, 2022, 2023, 2024, and 2025! Position Overview: REI Systems is seeking a highly organized, dependable, and customer-focused Administrative Assistant – Front Desk & HR Support to serve as the face of the organization at our Sterling office. This role is responsible for managing front desk operations while also providing critical administrative and HR operational support across the employee lifecycle. The ideal candidate thrives in a fast-paced environment, demonstrates strong attention to detail, and is able to balance multiple priorities while maintaining a high level of professionalism and service excellence.

Requirements

2–4 years of relevant experience
MS Office proficiency
Strong multitasking and communication skills
Ability to work in a fast-paced environment
Customer service orientation
Strong organization and time management
Attention to detail
Communication skills
Professionalism and discretion
Problem-solving mindset

Nice To Haves

HR process experience
Corporate environment experience
Familiarity with HR systems
Ability to obtain and maintain a clearance is preferred.

Responsibilities

Serve as the first point of contact for all visitors, candidates, and employees, ensuring a welcoming and professional experience.
Manage incoming calls, emails, and inquiries; route calls appropriately including directing customer support inquiries to designated helpdesk contacts.
Maintain front office coverage and ensure smooth day-to-day operations.
Coordinate visitor check-in, badge management, and security protocols.
Maintain office calendar and conference room scheduling.
Provide administrative support to leadership, HR, and corporate departments.
Prepare and distribute internal communications.
Maintain administrative procedures and documentation.
Organize filing systems and records.
Perform general administrative duties.
Manage office supplies and inventory.
Coordinate equipment maintenance and vendors.
Maintain common areas and office cleanliness.
Manage mail and package distribution.
Support onboarding and new hire coordination.
Assist with interview scheduling and candidate experience.
Maintain employee records and HR data updates.
Support offboarding processes.
Coordinate meetings, town halls, and corporate events.
Research vendors and assist with logistics.
Support employee engagement initiatives.
Conduct research and support reporting needs.
Assist with presentations and leadership materials.
Identify process improvements.
Support digital tools and workflow efficiency.
Ensure data accuracy across systems.